these 4 derivations will be built:
  /nix/store/f65k9p27ld7m4prkq5vab62akpdsxb07-iets-0.2.0.drv
  /nix/store/vw71jrapxglvbg1rissyklgxh528pavd-iets-fuzz-diff-0.0.0.drv
  /nix/store/2pc028gpdabccwi80ngp8va6j9vyw9g4-iets-conformance-adapter.drv
  /nix/store/n1czrf6mv5fvjdvhmsf1w8p2zgm7w0in-nix-conformance-iets.drv